You might as well compare with these Back Items so you can decide which Back Items you're gonna use for ninja Saga Pvp or in Hunting House for easier killing the boss or your opponent in ninja saga PvP
These Back Items might have better effect . Here we go :

• Water Symbol Guitar
• S50 Blood Shade Magatama

  Created with blood and molten lava, the blood shade magatama consumes the life force of anyone with malicious intent. Has a 8% chance to absorb 10% of the attackers max HP and 8% chance to convert any damage taken to HP.
• S51 Enchanted Winged Carapace

  Increases accuracy by 3%. Recover 4% HP at the start of every turn.
• Red Koi
• Chromaflake

  Increases damage by 5% and dodge rate by 3%.
• S4 Bladed Wings

  Reduce damage taken by 400. Recovers 1% of the user's max HP
• Red Shuriken Skis
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Ritual Taiko
• Osuzu Shinsen

  Ninja Saga 2nd Anniversary Carnival! Increase all attack damage by 5%.
• Gruidae Wing

  Each turn recover 80 CP. Recover CP after HP reduction. (Amount: 8% of HP reduction)
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• Blue Shell
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• Civet Cat Tail
• Folk Folding Fan
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• Samurai Painted Wood

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Straw Hat

  Increase dodge rate by 3%.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• Colorful Snowflake

  Increase agility by 1. Has 15% chance to freeze enemy who attacks user (2 turns). Frozen target cannot move but damage taken is reduced by 80%.
• Poor Bag

  7% chance to convert damage taken to HP positively. Reduce damage taken by 5%.
• S79 Blood Feather

  Has 15% chance to convert damage taken to HP positively.
• S26 Bashosen

  Increase 10% Combustion chance.